UFC officials haven’t formally announced the scratch, though with a month’s notice, a replacement likely will be sought.

UFC on FX 2 takes place March 3 at Allphones Arena in Sydney and airs live in the U.S. on March 2 due to the time difference. The event’s main card airs live on FX while preliminary-card fights, including the above matchup, are slated for FUEL TV.

Peralta and Semerzier, of course, first met at November’s UFC on FOX 1 event. Peralta was initially awarded a TKO victory when his head struck Semerzier in the temple. The clash was tough to see in live action, and it wasn’t until well after the bout that referee “Big” John McCarthy realized the headbutt (and not punches) prompted the knockout.

If the foul had been caught, the bout likely would have gone to the judges’ scorecards since fights that end as the result of an accidental foul are judged based on the preceding rounds. Instead, it was ruled a TKO win for Peralta but later overturned by the California State Athletic Commission to a no-contest.

A total of 26 fighters got their chance to shine on Saturday as part of UFC 190 at Rio de Janeiro’s HSBC Arena. Now that UFC 190 is in the books, it’s time to commence MMAjunkie’s “Three Stars” ceremony.

The man known for cranking submissions to the point of injury added eye-gouging to his repertoire. But is the controversy of Rousimar Palhares too essential to his bizarre, awful appeal for his employers to take any meaningful action against him?